AdvancedDataGrid 的节点对象怎么读取？

复制内容到剪贴板

代码:

<?xml version="1.0" encoding="utf-8"?>  
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute" fontSize="12">  
    <mx:Script>
        <![CDATA[
            import mx.events.ListEvent;
            import mx.controls.Alert;
            //目录点击跳转函数
            private function ADGClick_fun(e:ListEvent):void{
                Alert.show(e.currentTarget.selectedItem);
            }
        ]]>
    </mx:Script>
    
   <mx:XMLList id="myXMLList">
        <friends a="00" b="可以读取" >
            <friend a="01" b="这个节点怎么读取"/>
            <friend a="02" b="这个节点怎么读取"/>
            <friend a="03" b="这个节点怎么读取"/>
        </friends>
        <families a="04" b="可以读取">
            <friend a="05" b="这个节点怎么读取"/>
            <friend a="06" b="这个节点怎么读取"/>
            <friend a="07" b="这个节点怎么读取"/>
            <families a="08" b="可以读取">
                <friend a="09" b="这个节点怎么读取"/>
                <friend a="10" b="这个节点怎么读取"/>
                <friend a="11" b="这个节点怎么读取"/>
            </families>
        </families>
    </mx:XMLList>
    <mx:HierarchicalData source="{myXMLList}" id="myHD"/>
    <mx:AdvancedDataGrid id="myADG" dataProvider="{myHD}" itemClick="ADGClick_fun(event);" width="100%" height="100%" openDuration="0" draggableColumns="false" sortableColumns="false" sortExpertMode="true" rowHeight="22" creationComplete=" myADG.expandAll();">        
        <mx:columns>
            <mx:AdvancedDataGridColumn headerText="A" dataField="@a" sortable="false"/>
            <mx:AdvancedDataGridColumn headerText="B" dataField="@b" sortable="false"/>
        </mx:columns>
    </mx:AdvancedDataGrid>
</mx:Application>